Patents by Inventor Karoly Dischö

Karoly Dischö has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cement structure containing a waterproofing layer
    Patent number: 6489032
    Abstract: A process of providing a waterproof concrete structure comprising the steps of (a) providing a layer of a concrete composition on a support; (b) spraying on to this concrete composition a waterproofing layer; and (c) applying to the waterproofing layer a further layer of a concrete composition; characterized in that the waterproofing layer is provided by a composition which comprises an aqueous dispersion of coalescable particles of thermoplastic polymer. The method is useful in the waterproofing of tunnel linings.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: December 3, 2002
    Assignee: MBT Schweiz AG
    Inventors: Karoly Dischö, Max Oppliger